Abstract
Adrenal ascorbic acid concentration of the golden hamster (Mesocricetus auratus), under prehibernatory and hibernatory conditions, was estimated. There was no significant difference between the adrenal ascorbic acid concentration of the control group (309.9 [plus or minus] 17.8 mg/100 g adrenal tissue) and the group of hibernating animals (306.9 [plus or minus] 14.0 mg%) On placing the animals in a cold environment (2[degree] C) there was a rise in the adrenal ascorbic acid concentration. This rise continued for about 5 hours, after, there was a steady decline until the animals hibernated.